TI-2026-63672 Aliases CVE-2026-95667 GHSA-qjpg-gmh7-3ch6

MISP Installer Log and FIFO Created World-Readable, Exposing Sensitive Credentials

LOW 30CWE-22Published 2026-09-22 · Updated 2026-09-22

Key facts

Attack vector: Local
Privileges required: None
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Information disclosure
Confidentiality · integrity · availability: High · None · None
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-22 and the CVSS impact.

Summary

The MISP installer scripts (for Debian 12, Debian 13, Ubuntu 24.04, and RHEL 9.4) create a log file at /var/log/misp_install.log and a named pipe (FIFO) at /var/log/misp_install.log.pipe to capture all installer output. The log captures highly sensitive data including the generated admin password, database passwords, GPG passphrase, and supervisor password. However, the log file was created by the tee command under the system default umask, resulting in world-readable permissions (typically 0644). Similarly, the FIFO was created with mkfifo without an explicit mode, also inheriting the default umask and remaining world-readable during the window before it was unlinked. Any local unprivileged user on the system could read the log file or the FIFO to obtain these credentials. Additionally, the log file was not removed before creation, meaning a pre-existing symlink in /var/log could have been used to redirect the write to an arbitrary location. Version affected: <2.5.47

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.0018 7th percentileScored 2026-11-07

Fix Fixed MISP (MISP): 2.5.47

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
MISP	MISP	before 2.5.47	2.5.47	Patch available	CNA

MISP VendorMISP Affected before 2.5.47 Fixed in 2.5.47 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:misp-project:misp::::::::	—	—	Misp-project

cpe:2.3:a:misp-project:misp:*:*:*:*:*:*:*:* Versions — — ·Misp-project

Remediation

Fix · CNA MISP (MISP) Fixed in 2.5.47

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Release · 2026-09-22
MISP 2.5.47
19 records Highest priority Priority LOW 19 LOW
Other records, highest priority first
- TI-2026-63688 MISP: Disabled-user check ineffective in pre-authentication TOTP login branchPriority LOW 37
- TI-2026-63677 MISP Unauthenticated Blind SSRF via XML Body ProcessingPriority LOW 37
- TI-2026-63690 MISP: PHP phar stream wrapper enables deserialization and code execution via caller-influenced filesystem pathsPriority LOW 36
Show all 19 records →

Timeline

2026-10-02 Threatist record created from CVE-2026-95667
2026-10-03 Alias added: GHSA-qjpg-gmh7-3ch6

References

Patch 1

Security patch

TI-2025-41517 In MISP before 2.5.28, app/View/Elements/Workflows/executionPath.ctp allows XSS in the workflow execution path. CVSS 3.1CRITICAL 9.0
TI-2026-65744 MISP TOTP Code Replay Allows Duplicate Authentication Within Validity Period CVSS 4.0CRITICAL 9.3
TI-2026-54145 Path Traversal in MISP Object Template Resolution During STIX Import and Export in misp-stix library CVSS 4.0HIGH 8.8
TI-2020-10250 MISP MISP-maltego 1.4.4 incorrectly shares a MISP connection across users in a remote-transform use case. CVSS 3.1CRITICAL 9.8
TI-2026-59159 MISP Unauthenticated Mail Endpoints Allow Unbounded Storage Consumption and Request Flooding CVSS 4.0HIGH 8.7
TI-2026-58541 MISP LDAP and LinOTP Authentication Bypass via Empty or Invalid Credentials CVSS 4.0CRITICAL 9.5

See all 182 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences